/*
 * Copyright 2021 DataCanvas
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.dingodb.meta;

import java.util.Map;

public interface InfoSchemaService {

    static InfoSchemaService root() {
        return InfoSchemaServiceProvider.getDefault().root();
    }

    /**
     * get global variables.
     * @return all global variables
     */
    Map<String, String> getGlobalVariables();

    void putGlobalVariable(String key, Object val);

}
